Trolley-wheel.



E. J. & D. R. PREDERICKS.

l TROLLEY WHEEL. PPLIUATIONFILBD SH12?,

E. J. & AI). R. PREDERIGKS.

` TROLLEY WHEEL.

APPLICATION FILED SH12?, 1907.

903,698 Patented Nov. 10, 1908.

. 2 SHEETS-SHEET Z. EZ

Suvenlon trolley will UNITED sTATEs PATENT oEEIcE.

EDMUND J. FREDERICKS AND DILLA R.. FREDERICKS, OF OHIO, ILLINOIS, ASSIGNORS O F ONE-FOURTH TO LUCIEN F. HUTOHENS, ONE-EIGHTII TO MINNIE REMSBURG, AND ONE- EIGHTH TO DORA CHASE, ALL OF CONNEAUT, OHIO,

TROLLEY-IITHIEEL.v

Speccation of Lettera Patent.

Ptentednov. 1o, 190e.

Application led September 27, 1907. Serial N o. 394,985.

To all whom 'it may concem:

Be it known that we, EDMUND J FREDEn. Ioxs and DILLA'R. FREDERIoKs, citizens of` residing at Ohio, in the the United States, county of Bureau and State of Illinois, have invented certain new and useful Improvements in Trolley-Wheels, otv which the fol.-

4lowing is a specification.

1 Our invention lrelates to an improvement in trolley wheels, and the Objectis to form a bearing surface Where the friction on the wearing parts will be lessened and ,at the same time give better results:l

Another object is to provide means for lubricating the different parts. through the axle of the wheel and to provide a harp 'which has a pivotal'connectlon, so that the be to a great extent prevented from leaving the wire. y I

he invention relates to certain other novel features of construction and combinations of parts which will be hereinafter described and pointed out in the claims. f'

In the accompany-ing drawings,l Figure 1 is a vertical sectional view; Fig. 2 is an end viewg'Fig., 3 is a side view; Fig. 4 is a side elevation of the harp, and Fig. 5 is apen spect'ive `view of the sleeve which surrounds the axle.

A represents the harp, which is provided with a knuckle joint 1 to permit the harp to have a pivotal movement, and springs 2,

2 connected to the sides of the harp and extending down below the pivotal connection tend to keep the harpin the desired position.

. The harp 1s provided at its upper end with openings 6, (i steel axle D, tions 7', 7. I

B represents ,the wheel having the usual groove 3 for the wire..l The hub 4 of the wheelis lined with a stationary hardened steel bushing 5 to prevent the Wear of the copper wheel 011 the hub. Loosely mounted on the axle D is a steel sleeve C having perforatio'ns 8, 8 therein. The steel bushing 5 is loosely mounted on the sleevevO, and the sleeve C is provided with spiral grooves 16 on its upper'surface for conveying the oil or lubricant to the bushing. The bushing 5 for the receptionV of the hollow which is provided withl perforaand the steel slee-ve C are flush with the hubv A 4 of the Wheel B, and mounted on the axle D are copper Washers 9, which are received in recesses 10, 10 in the harp which are held lhub 4, thereby lubricating. all of the .Th

f closing the openings.

against the hub, bushing and sleeve by coil springs 11. y

Projections 12, l2 extend out from the sides of. the harp and are provided with screw threads 13 adapted to receive the caps 14. .Between thesel caps and the harp an oil or lubricant chamber 15`is formed, which supplies the lubricant to the hollow a'xle D and through the pcrforations 7 7 of the axle passes to the sleeve C and from the sleeve through the perforations 8 andthe spiral grooves 16 to the bushing 5 of the )artsx e caps 14 are provided with openinlgs 17 for fllingthe chamber-5.15 with lubricant extending .from the chambers 15 are ducts 21 to theaxle and Washers. These openings 17 have screw-threaded plugs 18 therein for Mounted on the harp and preferably forming an integral part thereof' are 1 the guards 19, which extend nearly to the outer edge of the wheel B and also .out over the caps 14 to prevent the Wire from striking the caps or ends of the harp and catching in case the wheel should jump the wire. Extending through the cap 15, harp, and axle D are steel pins or split keys 20, which tend to keep the axle stationary. The copper washers 9 which bear against the ends of the hub 4, bushing 5 and sleeve C, act as electrical conductors for conducting the current from the wheel to the harp.

It is evident that many slight changes might be made in the form' ment of the several parts described Without departing from the spirit and scope oi. our invention, and .hence we. do not wish to limit ourselves to the exact construction herein set forth, but

Having Ifully described what We claim. as new and by Letters Patent, is

our invention, deslre to secure and arrange- 1. In a trolley wheel, the combination vwith a harp having oil chambers formed therein,'caps adapted to close the ends of the chambers, of a hollow axle mounted in the harp having apertures formed therein, a sleeve mounted 'on the axle, said oil chambers communicating with the axle whereby the oil is conducted to the Wheel. j

2. In a trolley Wheel, the combination with a harp having oil chambers formed. therein, caps for'closing the oil chambers. of a hollow axle mounted in the harp having perforatione therein, a sleeve mounted on the axle and having a spiral groove thereon, the sleeve lhaving apertures extending through the groove, said Chambers in eomnninieation with the axle whereby the lubricant is conducted to the Wheel, and

, means for refillingr the chambers Without removing the caps.

In a trolley Wheel, the combination with a harp having. oil chambers formed in the axle bearings, an axle mounted in the harp, a sleeve mounted on the axle, and

Washers adapted to bear against the wheel and sleeve, said oil chambers having ducts therein for conveying oil to the axle and 15 Washers.

In testimony whereof We aix our signa tures in presence of two Witnesses.

EDMUND J FREDERICKS. DILLA R. FREDERICKS:

-Witnessesz HANNAH MCCORMICK, MINNIE D. REMSBUBG. 

